20209+1948 HJ 2954 AB
20h 20m 50.62s +19° 47' 52.1" P.A. 303.00 sep 3.1 mag 10.47,10.54 Sp A3
| Coord 2000 |
20209+1948 |
|
Discov num |
HJ 2954 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 20 50.62 +19 47 52.1 |
|
| Date first |
1831 |
|
Date last |
2018 |
|
Obs |
12 |
|
| Pa first |
300 |
|
Pa last |
302.6 |
|
P.A. Now (θ) |
302.6° |
|
| Sep first |
1.5 |
|
Sep last |
3.075 |
|
Sep. Now (ρ) |
3.075" |
|
| Mag pri |
10.47 |
|
Mag sec |
10.54 |
|
delta mag (ΔM) |
0.07 |
|
Spectral class |
A3 (white) |
|
| Pri motion ra |
+003 |
|
Sec motion ra |
-062 |
|
| Pri motion dec |
-012 |
|
Sec motion dec |
+034 |
|
| Notes |
|
|
rPM=1.126
This double is not physical.
20209+1948 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 20 51 +19 47 52 |
HJ 2954 AB |
2018 |
12 |
303 |
3.1 |
10.47 |
10.54 |
0.07 |
|
<=== |
| Show |
|
|
20 20 51 +19 47 54 |
HJ 2954 BC |
2015 |
5 |
292 |
23.1 |
10.54 |
13.00 |
2.46 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagitta |
|
Tycho2 |
1639-02174-2 |
|
Gaia DR2 |
1816513468172444672 |
|
